CN202645977U - Concrete pump swinging mechanism - Google Patents
Concrete pump swinging mechanism Download PDFInfo
- Publication number
- CN202645977U CN202645977U CN 201220253798 CN201220253798U CN202645977U CN 202645977 U CN202645977 U CN 202645977U CN 201220253798 CN201220253798 CN 201220253798 CN 201220253798 U CN201220253798 U CN 201220253798U CN 202645977 U CN202645977 U CN 202645977U
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- CN
- China
- Prior art keywords
- valve oil
- oil cylinder
- pendulum valve
- pendulum
- rocker arm
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a concrete pump swinging mechanism which comprises pendulum valve oil cylinders, pendulum valve oil cylinder seats and a rocker arm. The pendulum valve oil cylinders comprise a left pendulum valve oil cylinder and a right pendulum valve oil cylinder. One end of the left pendulum valve oil cylinder is movably installed on a left pendulum valve oil cylinder seat, one end of the right pendulum valve oil cylinder is movably installed on a right pendulum valve oil cylinder seat, and the other end of the left pendulum valve oil cylinder and the other end of the right pendulum valve oil cylinder are respectively and movably installed at two ends of the rocker arm. When the rocker arm swings to a largest swinging angle, the axis of the pendulum valve oil cylinders forms an included angle theta with the axis of the rocker arm, and theta is from 80 degrees to 100 degrees. The concrete pump swinging mechanism fully develops power effect, enables the torque of the pendulum valve oil cylinders and the rocker arm to be the largest, and is suitable for all concrete pumping equipment with swing mechanisms, including trailer pumps, pump trucks, car pump, packing industrial pump for coal mines and the like.
Description
Technical field
The utility model relates to a kind of concrete pump pendulum swing mechanism.
Background technique
In existing concrete pump (abbreviation concrete pump) field, S type distributing valve generally uses, and accounts for more than 70% of all types distributing valve output.Concerning S type distributing valve, the pendulum swing mechanism is the force transmission mechanism of this type distributing valve, how to design not only soon but also economize and also do not have a kind of data to do special introduction at present.
Generally, when the pendulum swing mechanism of S type distributing valve concrete pump designs, what mainly consider is interference problem, generally be to make a horizontal line (seeing accompanying drawing 2) with S pipe spindle central, then find two symmetric points 6 and 7, spindle central when swinging as pendulum valve oil cylinder with graphing method at horizontal line, and the center line of pendulum valve oil cylinder seat and point 6 or coincidences parallel with 7 line.The pendulum swing mechanism that designs like this is often stressed not to be optimum, particularly start instantaneous when namely putting swing mechanism work, axial plane M1N1 is not vertical in the thrust line of pendulum valve oil cylinder and the S pipe, thereby can not make the thrust of pendulum valve oil cylinder produce maximum moment, and in order to overcome same resisting moment, so that pendulum valve oil cylinder size is bigger than normal, structure is heavy, cost is high.
The model utility content
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of and give full play to power usefulness, in when starting so that pendulum valve oil cylinder maximum to the pushing torque of rocking arm, reduce the concrete pump pendulum swing mechanism putting valve oil cylinder size, reduce cost, be applicable to have all concrete pumping equipments of pendulum swing mechanism, as drag pump, pump truck, Vehicle loaded pump, colliery filling industrial pump etc.
A kind of concrete pump pendulum swing mechanism, comprise pendulum valve oil cylinder, pendulum valve oil cylinder seat and rocking arm, described pendulum valve oil cylinder comprises left swing valve oil cylinder and right pendulum valve oil cylinder, described pendulum valve oil cylinder seat comprises left swing valve oil cylinder seat and right pendulum valve oil cylinder seat, one end of described left swing valve oil cylinder is movably arranged on the left swing valve oil cylinder seat, one end of described right pendulum valve oil cylinder is movably arranged on the right pendulum valve oil cylinder seat, the other end of the other end of described left swing valve oil cylinder and described right pendulum valve oil cylinder is movably arranged on respectively the two ends of described rocking arm, the angle of medial axis when described rocking arm swings to the full swing angle of the medial axis of described pendulum valve oil cylinder and rocking arm is θ, and described θ is 80～100 degree.
In the utility model, the medial axis of the end face of described pendulum valve oil cylinder seat and described pendulum valve oil cylinder is provided with an angle a, and described a is 80～100 degree.
Adopt such scheme, the utlity model has following advantage:
1, the medial axis of left swing valve oil cylinder or right pendulum valve oil cylinder and the medial axis of rocking arm are provided with an angle, this angle is near 90 degree, because the operating angle when this angle is the starting of pendulum swing mechanism, again since when starting whole pendulum swing mechanism with the maximum of the frictional force between part on every side, frictional resistance moment is also maximum, and when pendulum valve oil cylinder and rocking arm angle are 90 ° so that starting torque reaches maximum, thereby can reduce to put valve oil cylinder size, the reduction cost.
2, the end face of pendulum valve oil cylinder seat is provided with an angle with pendulum valve oil cylinder center line, and this angle is between 80～100 degree, and like this so that pendulum valve oil cylinder when swinging, the end face of pendulum valve oil cylinder does not produce interference with pendulum valve oil cylinder seat.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of prior art.
Embodiment
Below in conjunction with accompanying drawing, describe a kind of embodiment of concrete pump pendulum swing mechanism in detail.
As shown in Figure 1, a kind of concrete pump pendulum swing mechanism comprises: left swing valve oil cylinder seat 1, left swing valve oil cylinder 2, rocking arm 3, right pendulum valve oil cylinder 4, right pendulum valve oil cylinder seat 5.The S pipe is connected the shape of not shown S pipe with rocking arm 3 rigid phases.
As shown in Figure 1, M1, N1 line are the medial axis of rocking arm rocking arm when swinging to the full swing angle [alpha].M, N line are axial plane in the pendulum swing mechanism.Y1 is right pendulum valve oil cylinder when shrinking fully, right pendulum valve oil cylinder two ends bulb centre distance.Y2 is right pendulum valve oil cylinder when shrinking fully, left swing valve oil cylinder two ends bulb centre distance.α is the full swing angle of rocking arm.Angle when θ is starting between rocking arm medial axis and pendulum valve oil cylinder medial axis.
The specific design scheme is as follows: the first step, design each parameter of S pipe according to interrelated data and posterior infromation, and comprise size L1, A and S pipe pivot angle α.For example can be permitted at female paper " design of horizontal pipe-valve of concrete pumps " in great favour " engineering machinery " the 1st phase in 1997 work with reference to Shenyang Jianzhu University.
Second step, the S pipe parameter of determining according to the first step are made S pipe projection view perpendicular to its y direction when being in the operating limit position, see accompanying drawing 1.
In the 3rd step, rule of thumb reach key dimension L2 and B that concrete structure is determined rocking arm.Generally get L2=(0.5～1.0) L1, B=(1/3～2/3) L1.See accompanying drawing 1.
In the 4th step, in the situation that structure allows, get θ=90 and ° make geometric drawing; Do not allow such as fruit structure, θ should be as far as possible near 90 °.Because the operating angle when this angle is the starting of pendulum swing mechanism, again since when starting whole pendulum swing mechanism with the maximum of the frictional force between part on every side, frictional resistance moment is also maximum, in order to give full play to power usefulness, can make starting torque reach maximum just angle design is 90 ° when therefore designing.According to the internal structure of pendulum valve oil cylinder and around the allowed band of installing space repeatedly map and determine size Y1, Y2 and pendulum valve oil cylinder stroke (pendulum valve oil cylinder stroke L=Y2-Y1).Attention: the central point 6,7 of pendulum valve oil cylinder seat should be contour and symmetrical, i.e. L3=L4.
During work, rocking arm 3 about under the thrust of pendulum valve oil cylinder, centered by gyration center, swing, its full swing angle is α.When left swing valve oil cylinder 2 stretches out, promote rocking arm 3 and drive simultaneously the S pipe and swing to the right, when right pendulum valve oil cylinder 4 be retracted into its limit position, namely during short position, rocking arm 3 pendulum are to low order end, as shown in Figure 1; Conversely, when right pendulum valve oil cylinder 4 stretches out, promote rocking arm 3 and drive simultaneously the S pipe and swing left, when left swing valve oil cylinder 2 be retracted into its limit position, namely during short position, rocking arm 3 pendulum are to high order end.
In the situation that structure allows, θ should be as much as possible near 90 °.Because the operating angle when this angle is the starting of pendulum swing mechanism, again since when starting whole pendulum swing mechanism with the maximum of the frictional force between part on every side, frictional resistance moment is also maximum, in order to give full play to power usefulness, just should being designed to 90 ° in theory, this angle can make starting torque reach maximum when therefore designing.
Simultaneously, when pendulum valve oil cylinder was swung, pendulum valve oil cylinder end face was not interfered with pendulum valve oil cylinder seat, with the angle of the end face of pendulum valve oil cylinder seat and pendulum valve oil cylinder centreline space be designed to 80～100 spend between.
Claims (2)
1. a concrete pump is put swing mechanism, comprise pendulum valve oil cylinder, pendulum valve oil cylinder seat and rocking arm, described pendulum valve oil cylinder comprises left swing valve oil cylinder and right pendulum valve oil cylinder, described pendulum valve oil cylinder seat comprises left swing valve oil cylinder seat and right pendulum valve oil cylinder seat, one end of described left swing valve oil cylinder is movably arranged on the left swing valve oil cylinder seat, one end of described right pendulum valve oil cylinder is movably arranged on the right pendulum valve oil cylinder seat, the other end of the other end of described left swing valve oil cylinder and described right pendulum valve oil cylinder is movably arranged on respectively the two ends of described rocking arm, it is characterized in that: the angle of medial axis when described rocking arm swings to the full swing angle of the medial axis of described pendulum valve oil cylinder and rocking arm is θ, and described θ is 80～100 degree.
2. concrete pump according to claim 1 is put swing mechanism, and it is characterized in that: the medial axis of the end face of described pendulum valve oil cylinder seat and described pendulum valve oil cylinder is provided with an angle a, and described a is 80～100 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220253798 CN202645977U (en) | 2012-05-31 | 2012-05-31 | Concrete pump swinging mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220253798 CN202645977U (en) | 2012-05-31 | 2012-05-31 | Concrete pump swinging mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645977U true CN202645977U (en) | 2013-01-02 |
Family
ID=47415094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220253798 Expired - Fee Related CN202645977U (en) | 2012-05-31 | 2012-05-31 | Concrete pump swinging mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258767A (en) * | 2019-04-24 | 2019-09-20 | 湖南睿弓机械科技有限公司 | Machines for mud clearage and its pumping system, distributor, pendulum valve module |
-
2012
- 2012-05-31 CN CN 201220253798 patent/CN202645977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258767A (en) * | 2019-04-24 | 2019-09-20 | 湖南睿弓机械科技有限公司 | Machines for mud clearage and its pumping system, distributor, pendulum valve module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180531 |